the "proper" way to identify the bitness of your kernel and CPU
Sharpe, Sam J
sam.sharpe+lists.redhat at gmail.com
Fri Apr 3 20:46:11 UTC 2009
2009/4/3 Robert P. J. Day <rpjday at crashcourse.ca>:
> On Fri, 3 Apr 2009, Sharpe, Sam J wrote:
>
>> [sam at machine ~]$ [[ $(grep lm /proc/cpuinfo) ]] && echo x86_64 || echo i686
>> x86_64 (this represents the processor architecture)
>
> and your opinion of
>
> $ getconf LONG_BIT
>
> i'm guessing that is equally informative, yes?
Apparently not, but I didn't know this until I did a bit of
reading/experimenting.
Take my example machine before which has a 64bit capable CPU but a 32bit OS:
[sam at machine ~]$ getconf LONG_BIT
32
As you can see, it printing the kernel architecture, not a property of
the CPU. I think /proc/cpuinfo is always the right place to look,
because getconf reports only on kernel properties.
--
Sam
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